Finding the Third Proportional to 1,387,844 and 3,212,659

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,844 : 3,212,659 = 3,212,659 : x
2. Step 2: Convert to fraction form
   1,387,844/3,212,659 = 3,212,659/x
3. Step 3: Cross multiply
   1,387,844x = 3,212,659 × 3,212,659
4. Step 4: Simplify right side
   1,387,844x = 10,321,177,850,281
5. Step 5: Solve for x
   x = 10,321,177,850,281/1,387,844
6. Step 6: Final answer
   x = 7,436,842.94